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Published on: September 16, 2022
A tick-acquired red meat allergy.
Joe Kevin Khoury1, Neil Christian Khoury2, Deborah Schaefer3
1NYIT College of Osteopathic Medicine, Northern Boulevard, Old Westbury, NY 11568, USA.
Galactose-alpha-1,3-galactose (alpha-gal) allergy, a tick-acquired red meat allergy, can cause delayed reactions. Increased awareness in emergency departments is crucial to prevent misdiagnosis and future allergic episodes.
Area of Science:
- Immunology
- Allergology
- Tick-borne diseases
Background:
- Allergic reactions are frequent in emergency departments, often linked to food or drugs.
- Identifying the specific allergen is key for effective patient management.
- Galactose-alpha-1,3-galactose (alpha-gal) allergy is an emerging cause of red meat allergy.
Observation:
- Alpha-gal allergy is acquired through tick bites and involves molecular mimicry.
- Reactions are typically delayed, presenting as allergic reactions or anaphylaxis.
- This allergy may be underrecognized in emergency and urgent care settings.
Findings:
- Three cases of allergic reactions presumed to be from red meat consumption due to alpha-gal allergy are presented.
- Lack of awareness can lead to misdiagnosis or delayed diagnosis of alpha-gal allergy.
- Inadequate patient guidance on avoiding red meat poses risks for recurrent, potentially severe reactions.
Implications:
- Enhanced diagnostic awareness of alpha-gal allergy in emergency settings is needed.
- Timely diagnosis and proper avoidance counseling can prevent severe allergic outcomes.
- Further research into alpha-gal allergy prevalence and management strategies is warranted.
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